Improvement in shutter-fasteners



`other shutter, shutters in their' bowed condition.

anni '1 @pitre www gw-wg fnnnnw RANKIN, or PHILADELPHIA, PnNNsYLvANA.

Letters Patent N o. 108,052,"dated October 4, 1870.

Moon-' IMPROVEMENT IN SHUTTER-FASTENE-RS.

. The Schedule referred to in these Letters Patent and making part of the same I, ANDREW Immun, 'of Philadelphia, county ot Philadelphia, State of Pennsylvania, have 'invented a Device for Bowing and Securing' Shutters, of which the following is a specification.

Nature and Objectief the Invention. 6

My invention consists of a'device too fullyl described hereafter to need `preliminary explanation, whereby locked after being closed.

Y shutters maybe retained in abowed condition and Description of thc VAccompitying Drawing.

Figure 1 is a perspective view of my dev-ice applied to shut-ters;

Figure 2, a sectional plan of ters. bowed by my device; l

Figure 3, the same as iig. 2, showing the shutters bowed to a greater extent; Figure 4,a'sectional,pla1 1 of portions `ot' the shutters, showing the saine closed and secured by the dcvice; and y 4, y

Figure 5, a frout view of `one of .the'plates GcncmlDescriptiom A and A represent portions of the shutters, tothe portionsof the shutinside of each ot' which is secured a plate, B, and each plate has a longitudinal slot, a, communicating with two notches, b endif, as best observed on reference to fig 5 4Dand D' are t'wo arms, hinged together ata, each arm having,`ne ar` its outer end, a pin, e, the head f of which can pass' through an enlargement, e', of the slot, nearl one end of the plate B`;but,'after being v thus introduced, cannot be disconnected from the plate,

4excepting where the said enlargement occurs.

' When the `shutters are bowed to a limited extent, as shown in fig. 2, the pins c of' the two arms, D and D', have been dropped, the piof one arm into the notch b of the plate 'B of one shutter, and the pin of fthe other arm into the notch. b of the plate of the so thatj the two arms will retain the Should it be desirableto have the shutters'howed to a greater` extent, the arms D and D may be`ele vated, so that their pins e e are withdrawn from the notches b b in the plates, when the shutters'may be opened until the said pins, after sliding. along the the shut-ters.

Quiche hinged portion of the arm `D is a proyection, @aand on the other arm is a tu1n-buckle,1z,hav' Ying a projection, p, which, wheuthe shutters are closed. and the arms are in line with each other, as shown in fig. 4,'cau t between the face of the arm D and the said projection m of the arm D', thereby locking the hinge of the arms, and consequently securing the shnttersxiu their closed condition. The hinge, however, can be rcadil y unlocked, andthe shut` ters rcleased,-by turning the buckle n until its pro jection 11 ceases to intervene between the projection `m of the arm D and the face ot' the arm D; l

V.It will now be seenwithout further description,

that, by the aid of the above-described device, thc shutters may be retained ina bowed condition, and adjusted as regards the extent of opening, and that the shutters may be locked after being closed.

In thepresent instance the plates B-B have edges 1/ at the back, so that there may be a'space or recess between theplates and the shutters, for the free play of the heads f of the pins e. lThe plates, however,

may consist of simple i'lat strips of' metal, in which case recesses should be cut in the' shutters for the play of the heads of the said pins.

Chti-ms.

1. The. slotted and notched plates Bk and B', se-

' cured to the shutters, in combination with the hinged armsr D and D' and their headed pins'c.

2. Tile combination, substantially as described, of the projection m, on one of the said hinged arms, with the turn-buckle -n on the other arm.

In test-imouy whereof, I have signed my name to this specification in thc presence of two subscribing witnesses.

' ANDREW RANKIN.

Witnesses J No. RHARDING, FRANK B. RICHARDS.

slots in the plates, fall into the notches b'b', the hinged arms accommodating themselves to the .inclination of 

